Espire Mains Powered Smoke & Heat Multisensor Alarm with 10 Year Backup Battery (ES1MULV)

The Espire ES1MULV is a Grade D1 mains-powered multi-sensor fire alarm combining optical smoke and thermistor heat sensing technologies in a single ceiling-mounted unit. Certified to both BS EN 14604:2005 and BS 5446-2:2003, the dual-sensor alarm continuously monitors ambient smoke particle density alongside rapid temperature fluctuations to accelerate response times to fast-flaming and slow-smouldering fires, while significantly reducing false activations from cooking fumes or dust.

Operating on a 230V AC mains supply (3.3W max, 0.5W standby), the unit features a non-replaceable 10-year sealed lithium backup battery (3V CR17450) to maintain continuous protection during mains power failures. Diagnostic features include automatic self-diagnostic sensor testing, a 3-LED status interface, an auto-dimming power LED for non-intrusive night operation, an 85dB sounder at 3 metres, a 10-minute alarm hush function, and a 12-hour fault silence option. A 24-hour memory feature retains visual indication following an alarm event.

The ES1MULV mounts onto an anti-tamper lock-in wiring base, supporting hardwired interlinking across up to 28 compatible Espire mains safety devices over a maximum cabling distance of 300 metres. Hybrid wireless interlinking across networks is supported via the optional ES1RF RF-Link module. Housed in a flame-retardant, UV-stabilised ABS enclosure (Ø132mm x 53mm, UL94-V0 rated), the unit is backed by a 5-year guarantee.